Neurofibromatosis type 1: extensive spinal involvement and Christmas tree sign
Diagnosis certain
Presentation
Known neurofibromatosis type 1 presenting with long term back and lower limb pain.
Patient Data
Age: 30 years
Gender: Male
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Multiple sizable plexiform neurofibromas involving the lumbar and sacral spinal nerve roots as well as the cauda equina expanding the neural foramina and extending into paravertebral regions.
Case Discussion
The extensive distribution of the plexiform neurofibromas produces an MRI appearance, said to resemble a Christmas tree.